OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 224: Determination of the Inhibition of the Activity of Anaerobic Bacteria Reduction of Gas Production from Anaerobically Digesting (sewage) Sludge PDF Download
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Author: OECD
Publisher: OECD Publishing
ISBN: 9264067337
Category :
Languages : en
Pages : 19
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Book Description
This Test Guideline describes a method, which can provide information that is useful in predicting the likely effect of a test substance on gas production in anaerobic digesters. Aliquots of a mixture of anaerobically digesting sludge (20 g/L to 40 ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264016198
Category :
Languages : en
Pages : 22
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Book Description
This Test Guideline is designed to assess the toxicity of substances to freshwater aquatic plants of the genus Lemna (duckweed). Exponentially growing plant cultures of the genus Lemna (Lemna gibba and Lemna minor usually) are allowed to grow as ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264224157
Category :
Languages : en
Pages : 18
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Book Description
This Test Guideline assesses the toxicity of chemicals on the growth of the rooted aquatic plants (Myriophyllum spicatum) growing in water-sediment system.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264224130
Category :
Languages : en
Pages : 23
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Book Description
This Test Guideline assesses the toxicity of chemicals on the growth of submerged aquatic plants Myriophyllum spicatum growing in a sediment-free test system.
Author:
Publisher: Academic Press
ISBN: 0323850790
Category : Science
Languages : en
Pages : 168
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Book Description
Advances in Applied Microbiology, Volume 115 continues the comprehensive reach of this widely read and authoritative review source in microbiology. Users will find invaluable references and information on a variety of areas relating to the topic of microbiology, with this release focusing on the preparation of functional oligosaccharides using microbial coupling fermentation. Contains contributions from leading authorities in the field Informs and updates on the latest developments in the field of microbiology Includes discussions on the role of specific molecules in pathogen life stages, interactions, and much more
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069941
Category :
Languages : en
Pages : 12
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Book Description
This Test Guideline describes an acute toxicity test to assess effects of chemicals towards daphnids (usually Daphnia magna Staus). Young daphnids, aged less than 24 hours at the start of the test, are exposed to the test substance at a range of ...
Author: Mirta L. Menone
Publisher: Springer Nature
ISBN: 303127833X
Category : Science
Languages : en
Pages : 228
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Book Description
This book focuses on the topic of ecotoxicology of aquatic macrophytes and is wide ranging, including the use of macrophytes for remediation of contaminated sites. Many human activities are threats to the equilibrium of natural ecosystems. Pollution from point and non-point sources can be assessed using a variety of techniques, such as biomonitoring, biomarkers and biosensors. In aquatic ecosystems, biomonitoring of pollutants is mostly conducted by analysis of the tissues of invertebrates and fishes, and biomarker studies are also more widely applied to animals rather than in plants. Aquatic macrophytes occupy a key niche in aquatic ecosystems and provide a range of ecosystem services. In addition to their role in primary production, vegetation plays a key role in the cycling and retention of nutrients and generally acts as a sink for pollutants. Therefore, because of their importance to aquatic ecosystems, more attention should be paid to understanding the fate of pollutants and to developing methods to evaluate the health status of macrophytic plants in freshwater, marine and estuarine environments.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264203788
Category :
Languages : en
Pages : 24
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Book Description
The test method described in this Test Guideline, is intended to define the lethal and sub-lethal effects of chemicals on the early life stages of the species tested. The early-life stages of fish are exposed to five concentrations of the test ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264067353
Category :
Languages : en
Pages : 31
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Book Description
This Test Guideline is designed to assess the effects of prolonged exposure to sediment-associated chemicals on the reproduction and the biomass of the endobenthic oligochaete Lumbriculus variegatus (Müller). The method is described for static test ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264070060
Category :
Languages : en
Pages : 21
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Book Description
This Test Guideline is designed to assess effects on seedling emergence and early growth of higher plants following exposure to the test substance applied to the soil surface or into the soil. Seeds are placed in contact with soil treated with the ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264264515
Category :
Languages : en
Pages : 28
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Book Description
This Test Guideline describes procedures designed to estimate the acute oral toxicity of substances to birds, and it provides three testing options: (1) limit dose test, (2) LD50-slope test, and (3) LD50-only test. The LD50-slope and LD50-only options are sequential testing procedures.
